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Search review questions
Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.
15,213 questions in 2,394 reviews
current versionsNo studies 15,213 · 100%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%
Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.
| Question | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Vitrectomy vs observation Costs · participants with idiopathic macular hole Vitrectomy for idiopathic macular hole (2015) · Cochrane | no estimate extracted | NR | No studies |
Intervention NR OHSS ‐ short vs long protocol · subfertile women Luteal phase support for assisted reproduction cycles (2015) · Cochrane | no estimate extracted | NR | No studies |
Intervention NR OHSS ‐ low vs high dose protocol · subfertile women Luteal phase support for assisted reproduction cycles (2015) · Cochrane | no estimate extracted | NR | No studies |
Progesterone vs placebo/no treatment OHSS · subfertile women Luteal phase support for assisted reproduction cycles (2015) · Cochrane | no estimate extracted | NR | No studies |
Intervention NR Adverse events · Adults (including pregnant women) and children Strategies to increase the ownership and use of insecticide‐treated bednets to prevent malaria (2015) · Cochrane | no estimate extracted | NR | No studies |
Helicopter emergency medical services vs ground emergency medical services Quality‐adjusted life years · adults (age > 15 years) with major trauma (ISS > 15) Helicopter emergency medical services for adults with major trauma (2015) · Cochrane | no estimate extracted | NR | No studies |
Helicopter emergency medical services vs ground emergency medical services Disability‐adjusted life years · adults (age > 15 years) with major trauma (ISS > 15) Helicopter emergency medical services for adults with major trauma (2015) · Cochrane | no estimate extracted | NR | No studies |
Helicopter emergency medical services vs ground emergency medical services Adverse events · adults (age > 15 years) with major trauma (ISS > 15) Helicopter emergency medical services for adults with major trauma (2015) · Cochrane | no estimate extracted | NR | No studies |
Intervention NR Reduce hip migration/hip problems · Children with cerebral palsy Sleep positioning systems for children with cerebral palsy (2015) · Cochrane | no estimate extracted | NR | No studies |
Intervention NR Effect on quality of life of child and family · Children with cerebral palsy Sleep positioning systems for children with cerebral palsy (2015) · Cochrane | no estimate extracted | NR | No studies |
Intervention NR Effect on physical functioning · Children with cerebral palsy Sleep positioning systems for children with cerebral palsy (2015) · Cochrane | no estimate extracted | NR | No studies |
Intervention NR Adverse effects · Children with cerebral palsy Sleep positioning systems for children with cerebral palsy (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Heparin vs no treatment Quality of life · People undergoing autologous or HLA identical allogeneic bone marrow transplant with a variety of malignant diseases… Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Low molecular weight heparin vs placebo or no treatment Overall survival · People undergoing stem cell transplant with malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Low molecular weight heparin vs placebo or no treatment All‐cause mortality at 100 days post‐transplant · People undergoing stem cell transplant with malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Low molecular weight heparin vs placebo or no treatment Mortality attributable to hepatic veno‐occlusive disease · People undergoing stem cell transplant with malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Low molecular weight heparin vs placebo or no treatment Quality of life · People undergoing stem cell transplant with malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Defibrotide vs no treatment Quality of life · Children undergoing stem cell transplant with malignant and non‐malignant diseases and risk factors for hepatic… Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Glutamine vs placebo Overall survival · People undergoing stem cell transplant with haematological malignancies Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Glutamine vs placebo Quality of life · People undergoing stem cell transplant with haematological malignancies Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Fresh frozen plasma vs no treatment Overall survival · People undergoing stem cell transplants with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Fresh frozen plasma vs no treatment All‐cause mortality at 100 days post‐transplant · People undergoing stem cell transplants with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Fresh frozen plasma vs no treatment Mortality attributable to hepatic veno‐occlusive disease · People undergoing stem cell transplants with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Fresh frozen plasma vs no treatment Quality of life · People undergoing stem cell transplants with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Fresh frozen plasma vs no treatment Frequency of adverse events · People undergoing stem cell transplants with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Antithrombin III plus heparin vs heparin alone Overall survival · People undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Antithrombin III plus heparin vs heparin alone All‐cause mortality at 100 days post‐transplant · People undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Antithrombin III plus heparin vs heparin alone Quality of life · People undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Heparin vs low molecular weight heparin Overall survival · Patients undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Heparin vs low molecular weight heparin All‐cause mortality at 100 days post‐transplant · Patients undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Heparin vs low molecular weight heparin Quality of life · Patients undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Ursodeoxycholic acid vs placebo or no treatment Quality of life · People undergoing stem cell transplant with a variety of malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Heparin vs prostaglandin E1 Overall survival · Patients undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Heparin vs prostaglandin E1 All‐cause mortality at 100 days post‐transplant · Patients undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Heparin vs prostaglandin E1 Quality of life · Patients undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Low molecular weight heparin vs prostaglandin E1 Overall survival · People undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Low molecular weight heparin vs prostaglandin E1 All‐cause mortality at 100 days post‐transplant · People undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Low molecular weight heparin vs prostaglandin E1 Quality of life · People undergoing stem cell transplant with malignant and non‐malignant diseases Interventions for prophylaxis of hepatic veno‐occlusive disease in people undergoing haematopoietic stem… (2015) · Cochrane | no estimate extracted | NR | No studies |
Long‐stored ('older') PRBC (≥ 21 days of storage) vs short‐stored (fresh) PRBC (< 21 days of storage) Transfusion‐related acute lung injury ‐ not measured · patients requiring blood transfusion (children with malaria and adults with a traumatic injury) Prolonged storage of packed red blood cells for blood transfusion (2015) · Cochrane | no estimate extracted | NR | No studies |
Long‐stored ('older') PRBC (≥ 21 days of storage) vs short‐stored (fresh) PRBC (< 21 days of storage) Postoperative infections ‐ not measured · patients requiring blood transfusion (children with malaria and adults with a traumatic injury) Prolonged storage of packed red blood cells for blood transfusion (2015) · Cochrane | no estimate extracted | NR | No studies |
Long‐stored ('older') PRBC (≥ 21 days of storage) vs short‐stored (fresh) PRBC (< 21 days of storage) Post‐injury coagulopathy ‐ not measured · patients requiring blood transfusion (children with malaria and adults with a traumatic injury) Prolonged storage of packed red blood cells for blood transfusion (2015) · Cochrane | no estimate extracted | NR | No studies |
Long‐stored ('older') PRBC (≥ 21 days of storage) vs short‐stored (fresh) PRBC (< 21 days of storage) Multiple organ failure post‐injury ‐ not measured · patients requiring blood transfusion (children with malaria and adults with a traumatic injury) Prolonged storage of packed red blood cells for blood transfusion (2015) · Cochrane | no estimate extracted | NR | No studies |
Long‐stored ('older') PRBC (≥ 21 days of storage) vs short‐stored (fresh) PRBC (< 21 days of storage) Adverse event (Hyperkalaemia) ‐ not measured · patients requiring blood transfusion (children with malaria and adults with a traumatic injury) Prolonged storage of packed red blood cells for blood transfusion (2015) · Cochrane | no estimate extracted | NR | No studies |
Intervention NR Change in other outcomes · 106 participants with primary brain tumour Multidisciplinary rehabilitation after primary brain tumour treatment (2015) · Cochrane | no estimate extracted | NR | No studies |
Tramadol vs fentanyl Number of patients with moderate to severe pain (PACU) · children undergoing surgery Tramadol for postoperative pain treatment in children (2015) · Cochrane | no estimate extracted | NR | No studies |
Tramadol vs morphine Number of patients with moderate to severe pain (PACU) · children undergoing surgery Tramadol for postoperative pain treatment in children (2015) · Cochrane | no estimate extracted | NR | No studies |
Oral antibiotics vs IV antibiotics Time to next exacerbation · people with cystic fibrosis experiencing a pulmonary exacerbation Intravenous antibiotics for pulmonary exacerbations in people with cystic fibrosis (2015) · Cochrane | no estimate extracted | NR | No studies |
Oral antibiotics vs IV antibiotics Quality of life · people with cystic fibrosis experiencing a pulmonary exacerbation Intravenous antibiotics for pulmonary exacerbations in people with cystic fibrosis (2015) · Cochrane | no estimate extracted | NR | No studies |
Single vs combination IV antibiotics Quality of life · people with cystic fibrosis experiencing a pulmonary exacerbation Intravenous antibiotics for pulmonary exacerbations in people with cystic fibrosis (2015) · Cochrane | no estimate extracted | NR | No studies |
Nebulised antibiotics vs IV antibiotics Time to next exacerbation · people with cystic fibrosis experiencing a pulmonary exacerbation Intravenous antibiotics for pulmonary exacerbations in people with cystic fibrosis (2015) · Cochrane | no estimate extracted | NR | No studies |